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	\path (0,8.667) node[above] {$z$}
	                   (7.746,-1.886) node[right] {$x$};
	\path (3.098,-.754) node[below,yshift=-1mm] {$a$}
	                   (3.098,2.712) node[above,xshift=-1mm, yshift=1mm] {$b$}
	                   (4.131,3.278) node[right, xshift=2mm, yshift=0.8mm] {$c$}
	                   (5.68,2.901) node[right, xshift=2mm, yshift=0.8mm] {$d$};
	                   
	\draw [->,shorten <=1pt,>=stealth',semithick,blue] (5.68,2.901) to (3.098,2.712);
	\draw [->,shorten <=1pt,>=stealth',semithick,blue] (4.131,3.278) to [bend right=45] (3.098,2.712);
	\end{tikzpicture}%%
\end{preview}
\end{document}
%\end{center}
%\vspace*{\fill}
%\end{document}
% End sketch output
